甜菜碱聚合物的合成及其在棉织物抗菌整理中的应用  

Synthesis of polybetaine antibacterial agent and its applications in cotton textiles finishing

作　　者：高思梦 王鸿博 杜金梅[1,2,3] 王文聪 GAO Simeng;WANG Hongbo;DU Jinmei;WANG Wencong(Jiangsu Engineering Technology Research Center of Functional Textiles,Jiangnan University,Wuxi,Jiangsu 214122,China;Key Laboratory of Eco-Textiles(Jiangnan University),Ministry of Education,Wuxi,Jiangsu 214122,China;College of Textiles and Clothing,Jiangnan University,Wuxi,Jiangsu 214122,China)

机构地区：[1]江南大学江苏省功能纺织品工程技术研究中心,江苏无锡214122 [2]生态纺织教育部重点实验室(江南大学),江苏无锡214122 [3]江南大学纺织服装学院,江苏无锡214122

出　　处：《纺织学报》2020年第2期89-94,共6页Journal of Textile Research

基　　金：国家重点研发计划资助项目(2017YFB0309100)

摘　　要：为解决现有甜菜碱抗菌剂在棉织物整理中抗菌效果不足的问题,制备了一种聚磺酸甜菜碱(PSPB-Am-AGE)抗菌整理剂并应用于棉织物的抗菌整理。利用正交试验分析了合成抗菌剂的温度、时间、引发剂用量和反应单体配比对其抑菌率的影响;采用活菌计数法测试了抗菌剂的最低抑菌浓度、抗菌整理后棉织物的抗菌性能及耐洗牢度。试验结果表明:合成该抗菌剂的最优工艺为反应温度70℃、反应时间4 h,甜菜碱与丙烯酰胺的量比为2∶1,引发剂2%;PSPB-Am-AGE对大肠杆菌与金黄色葡萄球菌的最低抑菌质量浓度为2.625 g/L;红外谱图与扫描电子显微镜表征结果表明,PSPB-Am-AGE成功接枝到织物表面。整理后织物对大肠杆菌和金黄色葡萄球菌的抑菌率分别为96.25%和99.79%,经30次洗涤后抑菌率仍超过90%,耐洗涤性能优于AAA级抗菌纺织品。In order to enhance the antibacterial efficiency of the existing betaine antibacterial agent in cotton fabric finishing,a polysulfonatedbetaine antibacterial finishing agent(PSPB-Am-AGE)was prepared and applied on a cotton fabric for antibacterial property.The effects of temperature,time,amount of initiator,ratio of betaine and acrylamide monomer of synthesizing on the inhibition rate of PSPB-Am-AGE were investigated based on the use of the orthogonal experimental planning method.Counting viable bacteria method was used to test the minimum inhibitory concentration of PSPB-Am-AGE,antimicrobial properties and washing fastness of cotton fabrics after antimicrobial finishing.The optimum conditions for the synthesis are as follows:temperature is 70℃,the molar ratio of betaine to acrylamide is 2∶1,the amount of initiator is 2%,and the reaction time is 4 h.The result shows that the minimum inhibitory concentration(MIC)of PSPB-Am-AGE for Escherichia coli(E.coli)and Staphylococcus aureus(S.aureus)is 2.625 g/L.FT-IR and SEM confirmed that PSPB-Am-AGE is synthesized and successfully grafted onto the surface of the cotton fabric.It turned out that the antibacterial rates of the finished fabrics against E.coli and S.aureus are 96.25%and 99.79%.The bacterial reduction rates maintains to be over 90%against both bacteria even after 30 consecutive laundering cycles.The washing fastness test shows that treated cotton is better than that of AAA class antibacterial textiles.

关 键 词：甜菜碱 聚合 棉织物 抗菌整理 抗菌剂 

分 类 号：TS195.5[轻工技术与工程—纺织化学与染整工程]